Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Hadron Structure
Nucleon electromagnetic and axial form factors with Nf=2 twisted mass fermions at the physical point
C. Alexandrou, M. Constantinou, K. Hadjiyiannakou, K. Jansen, C. Kallidonis, G. Koutsou*, K. Ottnad and A.M. Vaquero Avilés-Casco
*: corresponding author
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Pre-published on: December 27, 2016
Published on: March 24, 2017
Abstract
We present results for the nucleon electromagnetic and axial form factors using an Nf=2 twisted mass fermion ensemble with pion mass of about 131 MeV. We use multiple sink-source separations to identify excited state contamination. Dipole masses for the momentum dependence of the form factors are extracted and compared to experiment, as is the nucleon magnetic moment and charge and magnetic radii.
DOI: https://doi.org/10.22323/1.256.0154
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